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Industrial Sewing Machine
Jack F6 Sewing Machine
Product Brochure
| Machine Series | F6 |
| Machine Type | Single needle |
| Application | Medium fabric |
| Max Speed | 5000 spm |
| Motor Type | Servo motor |
| Stitch Type | Lockstitch |
| Auto Functions | Auto foot lift |
| Panel Type | LED |
| Table Set | With table |
Max Sewing Speed-5000 Stitches\Min
Max Stitch length - 5 Mm
Needle System - DBx1 (11Nu to 18Nu)
Automatic Thread Trimmer:Trims the thread at the end of each seam to save time and reduce waste.
Needle Positioning: Automatically stops the needle in the up or down position for easier fabric handling.
JACK A2C SEWING MACHINE
Product Brochure
| Machine Series | A2C |
| Machine Type | Single needle |
| Application | Medium fabric, Light fabric |
| Max Speed | 5000 spm |
| Motor Type | Servo motor |
| Stitch Type | Lockstitch |
| Auto Functions | Auto trimmer |
| Table Set | With table |
Max Sewing Speed-5000 Stitches\Min
Max Stitch length - 5 Mm
Needle System - DBx1 (11Nu to 18Nu)
Automatic Thread Trimmer:Trims the thread at the end of each seam to save time and reduce waste.
Needle Positioning: Automatically stops the needle in the up or down position for easier fabric handling.
Jack W4 Flatbed Interlock
Product Brochure
| Machine Series | W4 |
| Machine Type | Interlock |
| Application | Light fabric, Medium fabric, Heavy fabric |
| Max Speed | 5500 spm |
| Motor Type | Direct drive |
| Stitch Type | Overlock |
| Auto Functions | Auto trimmer, Auto foot lift |
| Panel Type | LED |
| Table Set | With table |
Needle SystemUY128GAS (Standard #11—#14)
Number of Threads5 Threads
Stitch Length1.5mm – 4.4mm
Stitch Width5.6mm or 6.4mm (Standard gauge)
The Jack W4D is a high-speed, computerized flat-bed interlock (coverstitch) sewing machine.
High Efficiency: It is roughly 50% faster than standard non-computerized machines, reaching up to 5,500 stitches per minute
Thread Catcher: Includes an integrated device to hold cut needle threads, keeping the work area clean
User-Friendly Display: Features a digital screen for monitoring speed and making precise setting adjustments
Common Uses:
Hemming: Ideal for T-shirts, blouses, and sportswear
Binding: Used for tape-binding and necklines.
Decorative Stitching: High-quality top-stitching and covering stitches.
JK-T1790G High-speed Electronic Button Holing Sewing Machine
Product Brochure
| Buttonhole Type | Buttonhole machine |
| Operation Type | Computerized |
| Buttonhole Length | 25mm to 120mm |
| Max Speed | 4200spm |
| Fabric Type | Light fabric |
| Clamping Type | Jeans cloth, Normal cloth, Knit cloth |
| Cutting Type | Before stitch |
| Bed Type | Table type |
| Lubrication | Automatic |
Needle TypeDP×5 #12 (Woven) / DP×5KN #11 (Knits)
Max Buttonhole SizeUp to 120mm (depending on subclass, e.g., 1792)
WeightApprox. 66 kg (Head) / 78 kg (Total)
The Jack JK-1790G is a high-speed, computerized electronic buttonhole machine designed for industrial garment production. Below are the key technical specifications and features for this model.
Semi-Dry Head: Uses advanced lubrication technology for the needle bar and hook to prevent oil stains on fabrics, ensuring clean seams
Touch Screen Panel: Features a user-friendly LCD interface with 31 pre-installed sewing motifs. It can store up to 500 total motifs and allows for easy adjustment of patterns and parameters
Subclass Variations
"K" Subclass: Specifically optimized for knitwear and stretch fabrics with a dedicated needle plate and foot to reduce thread breakage.
"X" Option: Features a "Short Thread" trimmer that leaves a tail shorter than 2.5 mm, eliminating the need for manual trimming.
Jack Over Lock Machine C5C-5
Product Brochure
| Number Of Threads | 5 thread |
| Usage | Light fabric, Knitwear, Denim, Home textiles |
| Differential Feed | Yes |
| Stitch Width | 6 mm |
| Max Speed | 7000 spm |
| Operation Type | Direct drive |
| Bed Type | Cylinder bed |
| Looper Type | Upper looper, Lower looper |
| Free Arm | Yes |
Max Sewing Speed: 7,000 stitches per minute (s.p.m.)
Stitch Width: 4 mm (Total seam width ~6 mm)
Stitch Length: Up to 4.6 mm
Presser Foot Lift: Up to 6 mm (Automatic)
Needle System: DCx27 (#11 standard)
Voice Guide: Includes a built-in speaker that alerts you to errors and guides you through setting adjustments
Short Thread Trimming: Uses a high-precision cutter (controlled by 3 photocells) to leave very short thread tails (approx. 5mm), reducing the need for manual trimming later.
Fabric Thickness Sensor: Automatically adjusts the motor torque when transitioning from thin to thick sections (like seams) to prevent skipped stitches or needle breakage
L/M/H Selector: A patented manual lever that allows you to quickly adjust the feed dog inclination for Light, Medium, or Heavy materials
Jack A6F-E Digital Lockstitch with Needle Feed
Product Brochure
| Machine Series | A6F-E |
| Machine Type | lockstitch |
| Application | Light fabric, Medium fabric, Heavy fabric |
| Max Speed | 4000 spm |
| Motor Type | Direct drive |
| Stitch Type | Single Needle Lockstitch |
| Auto Functions | Auto trimmer, Needle position, Auto foot lift |
| Panel Type | LED |
| Table Set | With table |
Max Sewing Speed4,000 SPM (Stitches Per Minute)
Stitch LengthUp to 4.5mm (Adjustable by 0.1mm increments)
Presser Foot Lift5mm (Hand) / 13mm (Auto/Knee)
Needle SystemDB×1 11-18# (Standard) / DP×5 18-21# (Heavy)
Operating Space300mm x 130mm (Oversized Arm)
LubricationSemi-Dry (Sealed Oil Pan)
The Jack A6F-E is a high-end, computerized needle-feed lockstitch machine. It is designed to handle difficult fabrics like chiffon, silk, and layered materials
Digital Stepper Motor Control: Unlike traditional machines, the A6F-E uses a stepper motor for stitch length control. This allows for extreme precision (0.1mm) and enables
Short Thread Trimming: Equipped with a double-knife system that leaves a thread tail of only 3mm, often removing the need for manual trimming after sewing.
Semi-Dry Head: The needle bar is treated with DLC (Diamond-Like Carbon) coating and lubricated with grease instead of oil, preventing oil stains on your garments.
Voice Guide: The machine provides audible alerts for errors and instructions on how to fix common issues.
A6F-E: Standard model for light to medium fabrics.
Jack A5E Artificial intelligence Lockstitch machine
Product Brochure
| Machine Series | A5E-B |
| Machine Type | Computerized |
| Application | Heavy fabric, Denim, Medium fabric, Light fabric |
| Max Speed | 5000 spm |
| Motor Type | Direct drive |
| Stitch Type | Computerized Lockstitch |
| Auto Functions | Needle position, Auto foot lift, Auto trimmer |
| Panel Type | LED |
| Table Set | With table |
Max Sewing Speed5,000 stitches per minute (SPM)
Stitch LengthUp to 5mm
Presser Foot Lift5mm (Hand), 13mm (Electronic/Auto)
Needle TypeDBx1 #11 to #18
The standout feature of the A5E-B is its ability to sense fabric thickness in real-time. The motor adjusts its torque and feeding power automatically, allowing you to sew through 8 layers of denim and then immediately switch to 2 layers of yarn-dyed fabric without losing stitch quality.
Unlike traditional machines with a manual dial, the A5E-B uses a digital stepping motor to control stitch length
The machine features an advanced auto-trimmer system that leaves a thread tail of only 3.5mm. This eliminates the need for manual "bird-nest" cleaning or manual trimming after sewing, which saves time in mass production
Jack 781G Mechanical button hole
Product Brochure
| Buttonhole Type | buttonhole machine |
| Operation Type | Computerized |
| Buttonhole Length | 6–19 mm |
| Max Speed | 3600spm |
| Fabric Type | Heavy fabric, Denim, Medium fabric, Light fabric |
| Clamping Type | Jeans cloth, Knit cloth, Normal cloth |
| Cutting Type | Simultaneous |
| Bed Type | Table type |
| Lubrication | Automatic |
Max Speed: 3,600 Stitches Per Minute (SPM)
Max Lift of Work Clamp: 12 mm
Stitch Length: 0.2 mm to 2.5 mm
Buttonhole Size: Typically 6.4 mm to 19 mm (can go up to 22 mm with specific adjustments/parts)
The Jack JK-T781G is an industrial mechanical buttonhole machine. While the JK-T1903GR you looked at before is specialized for attaching buttons, the 781G is designed specifically to cut and sew the buttonholes themselves
Direct Drive Motor: Features an integrated single-shaft motor that reduces noise and vibration compared to older belt-driven models. It is also much more energy-efficient.
LCD Control Panel: Comes with a user-friendly panel to adjust settings and includes an automatic piece counter to track your production
Smart Sensors: * Broken Thread Sensor: Automatically stops the machine if the thread snaps
End Bobbin Sensor (Optional): Warns you before the bottom thread runs out
Jack C7-4 Urus Overlocker With Artificial Intelligence
Product Brochure
| Number Of Threads | 4 thread |
| Usage | Denim, Home textiles, Light fabric, Knitwear, Sweaters |
| Differential Feed | Yes |
| Stitch Width | 4 mm |
| Max Speed | 7000 spm |
| Operation Type | Direct drive |
| Bed Type | Flat bed |
| Looper Type | Upper looper |
| Free Arm | Yes |
Number of Threads 4.
Needle SystemDCx27
Presser Foot LiftUp to 10 mm (Digital)
Differential Ratio0.7 – 2.0
ConnectivityIntegrated Wi-Fi (Industry 4.0 ready)
The Jack C7-4 Urus is a high-speed, 4-thread industrial overlocker that integrates "Artificial Intelligence" (AI) to automate material handling. It is designed to handle varying fabric thicknesses—from light knits to heavy denim—without requiring manual mechanical adjustments
Thickness Adaptive Technology: It can detect changes in thickness (like crossing a heavy seam) 32,000 times per second with a near-instantaneous response time
Three Operation Modes:
Manual: Full control via the foot pedal.
Semi-Automatic: The pedal controls sewing, while photocells handle automatic thread trimming and foot lifting.
Fully Automatic: The machine starts and stops entirely based on sensor detection (hands-free)
Voice Guide: An interactive panel that provides audio feedback for settings and troubleshooting
Jack C7-5 Urus Overlocker With Artificial Intelligence
Product Brochure
| Number Of Threads | 5 thread |
| Usage | Light fabric, Denim, Knitwear, Sweaters |
| Differential Feed | Yes |
| Stitch Width | 7 mm |
| Max Speed | 7000 spm |
| Operation Type | Direct drive |
| Bed Type | Flat bed |
| Looper Type | Upper looper, Lower looper |
| Free Arm | Yes |
Stitch Type5-Thread Safety Stitch / Overlock
Max Presser Foot Lift7mm – 10mm (Stepper motor controlled)
Needle SystemB27 / DCx27
Motor Type550W Integrated Direct Drive Servo
Operating ModesManual, Semi-Auto (photocells), Fully Auto
Industry 4.0Built-in WiFi for cloud-based production tracking.
The Jack C7-5 Urus is a high-speed, 5-thread industrial overlocker that represents a significant leap in sewing technology by integrating Artificial Intelligence (AI). It is specifically designed to handle "intelligent material adaptation
Automatic Material Handling (A.M.H.): The machine uses sensors to detect changes in fabric thickness in real-time. It calculates the optimal ratio between the presser foot pressure and the feed dog movement
Presser Foot Transformer: The system performs 32,000 detections per second. It can adjust the presser foot pressure in roughly 0.00006 microseconds, allowing it to "climb" over thick seams without bunching or skipped stitches
Operating Modes
Manual Mode: Traditional control where the operator uses the foot pedal for everything.
Semi-Automatic: The operator controls the speed with the pedal, but the machine automatically lifts the presser foot and trims the thread using photocell sensors.
Fully Automatic: The machine senses the fabric under the foot and starts/stops/trims entirely on its own—the pedal is not required
Zero-Adjustment Sewing: You can sew a mix of light, medium, and heavy fabrics in one go
Voice Guide: The machine "talks" to you to confirm setting changes or alert you to errors, making it very beginner-friendly
Jack H2A-CZ-12 basic top feed lockstitch
Product Brochure
| Machine Series | H2A |
| Machine Type | lockstitch |
| Application | Medium fabric, Light fabric, Heavy fabric |
| Max Speed | 2500spm |
| Motor Type | Direct drive |
| Stitch Type | lockstitch |
| Auto Functions | Auto trimmer |
| Panel Type | LED |
| Table Set | With table |
Motor TypeIntegrated Direct Drive Servo Motor
Max Stitch Length8 mm
Presser Foot Lift8 mm (by hand) / 16 mm (by knee)
Needle SystemDPx17 (Sizes 18–24 typically)
The Jack H2-A is a heavy-duty, industrial walking foot sewing machine designed primarily for medium to heavy materials. It is a popular choice for those working with leather, upholstery, and thick fabrics where a standard drop-feed machine might struggle
Integrated Direct Drive Motor: The motor is built directly into the machine head rather than under the table. This makes the machine significantly quieter, reduces vibration, and allows for precise speed control.
Top Feed (Walking Foot) Technology: The alternating presser feet "walk" over the fabric. This prevents layers from shifting and allows the machine to climb over bulky seams or thick transitions without dropping stitches
User-Friendly Control Panel: Located on the machine head, it allows you to easily adjust sewing speeds and set the needle position (up/down)
Upholstery: Car seats, sofa covers, and heavy curtains.
Leather Work: Wallets, bags, belts, and light-to-medium saddlery.
Heavy Canvas: Tents, awnings, and tactical gear.
JK A3C-C Sewing Lockstitch Machine
Product Brochure
| Machine Series | A3C |
| Machine Type | Lockstitch |
| Application | Medium fabric, Heavy fabric, Light fabric |
| Max Speed | 5000 spm |
| Motor Type | Direct drive |
| Stitch Type | Lockstitch |
| Auto Functions | Auto trimmer |
| Panel Type | LED |
| Table Set | With table |
Material TypeLight to Medium-heavy (Gauze to thin Jeans)
Max Sewing Speed5,000 stitches per minute (SPM)
Max Stitch Length5 mm
Presser Foot Height5 mm (manual) to 13 mm (knee lift)
Needle TypeDBx1 (#11 to #18)
LubricationAutomatic
Drive SystemIntegrated Direct Drive Motor
The Jack A3C (often referred to as the A3C-C) is an industrial, computerized lockstitch sewing machine known for its efficiency and "smart" features. It is a direct-drive machine, meaning the motor is integrated directly into the head for quieter, vibration-free operation
Automatic Thread Trimmer: Features a "0-second" thread cutting system that significantly speeds up workflow by trimming the thread immediately after finishing a seam
User-Friendly Design: *
Half-stitch button for precision finishing.
LED lamp with adjustable brightness for better visibility.
Needle positioning (up/down) to assist with turns and corners
Jack 1377E Mechanical Chain Stitch Buttonhole Machine
| Buttonhole Type | Straight |
| Operation Type | Computerized |
| Buttonhole Length | 6–32 mm |
| Max Speed | 1500 spm |
| Fabric Type | Light fabric, Medium fabric, Heavy fabric, Denim |
| Clamping Type | Jeans cloth, Knit cloth, Normal cloth |
| Cutting Type | Before stitch |
| Bed Type | Cylinder type |
| Lubrication | Automatic |
Max Sewing Speed1,500 SPM (Stitches Per Minute)
Button Diameter10mm to 28mm
Button Patterns4-hole (Parallel or Cross) and 2-hole
Presser Foot Lift9mm (Automatic)
Needle SystemTQx1 or TQx7 (#14 to #18)
MotorIntegrated Direct-Drive (up to 71% energy saving)
The Jack 1377G (often listed as the JK-T1377G or JK-T1377E) is a high-speed, single-thread chain stitch machine specifically designed for industrial button attaching
Easy Pattern Switching: You can switch between "X" (cross) and "||" (parallel) stitching patterns for 4-hole buttons simply by moving a lever or turning a knob—no cam change is required
User-Friendly Panel: Features an LCD display that allows you to set the number of stitches (usually 8, 16, or 32) and adjust the presser foot pressure easily.
LED Lighting: Includes an integrated LED light to reduce eye strain and improve accuracy during placement
Jack 5558G Lockstitch with edge cutter and pipping device
| Machine Series | 5558G |
| Machine Type | lockstitch |
| Application | Light fabric, Medium fabric, Heavy fabric |
| Max Speed | 4000spm |
| Motor Type | Direct drive |
| Stitch Type | lockstitch |
| Auto Functions | Auto trimmer |
| Panel Type | LED |
| Table Set | With table |
The "G" in the model name usually denotes Jack's modern Eco-integrated series, meaning the motor and control box are built directly into the machine head.
Integrated Side Cutter: The standout feature. It trims the excess fabric seam allowance as you sew, ensuring a perfectly even edge
Direct Drive Motor: Unlike old-fashioned clutch motors, this is silent, reduces vibration, and can save up to 70% on electricity
Efficiency: It combines two steps (sewing and trimming) into one. This is a massive time-saver for production lines.
Clean Workspace: Most versions come with a waste chute that directs the trimmed fabric scraps into a bin under the table
Because this machine has a cutting knife, timing is everything. Make sure your knife is sharp and properly aligned with the needle plate
Jack E5-4 Over Lock Machine
Product Brochure
| Number Of Threads | 4 thread |
| Usage | Home textiles, Light fabric, Knitwear, Denim |
| Differential Feed | Yes |
| Stitch Width | 4 mm |
| Max Speed | 5500 spm |
| Operation Type | Direct drive |
| Bed Type | Flat bed |
| Looper Type | Upper looper |
| Free Arm | Yes |
| Feature | Details |
| Model | Jack E5-4 |
| Machine Type | 4-Thread Overlock (Safety Stitch) |
| Number of Needles | 2 |
| Number of Threads | 4 |
| Max Sewing Speed | Up to 5,500 RPM (Stitches per minute) |
| Max Stitch Length | 4 mm |
| Needle Gauge | 2 mm |
| Overlock Width | 4 mm |
| Differential Ratio | 0.7 - 2.0 |
| Presser Foot Lift | Up to 5 mm |
| Needle Type | DCx27 |
| Motor Type | Integrated Direct Drive (Power Saving) |
Direct Drive Motor: The motor is built directly into the machine head. This reduces vibration, lowers noise, and saves up to 70% of electricity compared to traditional clutch motors.
Smart Control Panel: Features a digital display where you can easily adjust the sewing speed and set the needle position (up/down).
One-Key Reset: If parameters get mixed up, you can restore the machine to factory settings with a single button press
Common Error Codes & Solutions
If you see a code on the digital display, here is what they usually mean:
E1: Motor stuck or fabric is too heavy. Check for thread jams or if the machine needs oil.
E5: Needle position error. Try turning the handwheel manually; if it persists, you may need to reset the needle sensor via the panel.
Eb: Over-voltage protection. The power supply is too high (above 264V).
Ec: Under-voltage protection. The power supply is too low (below 154V).
Jack E5-5 Over Lock Machine
Product Brochure
| Number Of Threads | 5 thread |
| Usage | Light fabric, Denim, Home textiles, Knitwear |
| Differential Feed | Yes |
| Stitch Width | 6 mm |
| Max Speed | 5500 spm |
| Operation Type | Direct drive |
| Bed Type | Flat bed |
| Looper Type | Upper looper |
| Free Arm | Yes |
Number of Needles 2
Max Sewing Speed 5,500 Stitches Per Minute (SPM)
Stitch Length Up to 5 mm
Stitch Width Approx. 4 - 6 mm
Differential Ratio 0.7 – 2.0
Presser Foot Lift Up to 27 mm (feeding space)
Lubrication Fully Automatic (Enclosed System)
Needle System DCx27 (Standard Overlock Needles)
The Jack E5-5 is a high-speed, 5-thread industrial overlock machine (also known as a safety stitch machine). It is part of Jack’s advanced E-series, featuring a modern integrated design where the motor and control box are built directly into the machine head
Direct Drive Motor: The motor is integrated into the head, which eliminates the need for belts. This leads to 71% power savings, less noise, and zero vibration.
Smart Panel: Includes an easy-to-use digital panel for adjusting sewing speed and setting needle positions (up/down).
Intelligent Dormancy: If the machine is inactive for more than 30 minutes, it enters a "dormant" power-saving mode
Woven & Knit Fabrics: Excellent for T-shirts, school uniforms, and general apparel production
Jack C3C-4 Over Lock Machine
Product Brochure
| Number Of Threads | 4 thread |
| Usage | Knitwear, Home textiles, Light fabric, Denim |
| Differential Feed | Yes |
| Stitch Width | 4 mm |
| Max Speed | 5800spm |
| Operation Type | Direct drive |
| Bed Type | Flat bed |
| Looper Type | Upper looper |
| Free Arm | Yes |
Number of Threads 4
Number of Needles 2
Needle Type DCx27 11#
Stitch Width 4 mm
Stitch Length Up to 3.8 mm — 4.6 mm
Max Speed 5,800 Stitches Per Minute (SPM)
Differential Ratio 0.7 – 2.0
Presser Foot Lift 5 mm – 6 mm
Motor Type Integrated Direct-Drive Servo Motor
The Jack C3-4 (often referred to as the C3C-4 in specific regional listings) is a high-speed, 4-thread industrial overlock sewing machine known for its "smart" features and energy efficiency. It is designed for plain seaming on light to medium-weight fabrics
Automatic Functions: It typically includes automatic thread trimming and an automatic presser foot lifter, which can improve production efficiency by 20–25%.
Three Operation Modes:
Manual: Full control via the foot pedal.
Semi-Automatic: Manual sewing with automatic trimming and foot lifting.
Fully Automatic: Sensors detect the fabric to start and stop sewing without using the pedal.
This 4-thread model is a versatile "safety stitch" machine. It sews a 4-thread overlock stitch that is stronger than a 3-thread stitch, making it ideal for
Jack C3C-5 Over Lock Machine
Product Brochure
| Number Of Threads | 5 thread |
| Usage | Knitwear, Denim, Home textiles, Light fabric |
| Differential Feed | Yes |
| Stitch Width | 5 mm |
| Max Speed | 5800spm |
| Operation Type | Direct drive |
| Bed Type | Flat bed |
| Looper Type | Upper looper |
| Free Arm | Yes |
Max Sewing Speed 5,800 Stitches Per Minute (SPM)
Needle System DCx27 #11 - #14
Number of Needles2Stitch Width 5.0 mm
Stitch Length Up to 3.8 mm
Differential Ratio 0.7 to 2.0 (Adjustable for different fabrics)
Presser Foot Lift 5.0 mm
Power Supply 220V (Direct Drive Motor)
The Jack C3-5 (commonly part of the C3 series) is a high-speed, fully automatic industrial overlock machine designed for efficiency and precision. It is a 5-thread machine, making it ideal for creating strong, reinforced safety stitches often used in woven fabrics like shirts, trousers, and workwear
Automatic Functions: It features automatic thread trimming, an automatic presser foot lifter, and intelligent sensors that recognize the fabric to start and stop stitching automatically
Oil Leakage Prevention: Built with an enclosed needle bar mechanism and improved oil filtration system to ensure fabrics remain clean during high-speed production
Voice Guide: Many models in this series include a voice prompt system to assist with settings and error notifications
5-Thread Safety Stitch: Used for seaming and overcasting simultaneously, providing a durable edge that won't fray
JK-T1900G High-speed computerized bartack machine
Product Brochure
| Operation Type | Computerized |
| Max Stitch Length | 10mm |
| Max Tack Stitches | 64 stitches |
| Needle System | DPx17 |
| Max Speed | 3200spm |
| Application | Denim, Button attach, Knits, Belt loops, Woven, Leather |
| Bed Type | Flat bed |
| Hook Type | Shuttle hook |
| Lubrication | Automatic |
Max Sewing SpeedUp to 3,200 SPM (Stitches Per Minute)
Sewing Area40mm (X) x 30mm (Y)
Needle SystemDP×5 or DP×17 (depending on material weight)
Presser Foot Lift13mm (Standard)
Number of Patterns50+ built-in patterns (expandable via USB)
Motor TypeIntegrated Direct Drive Servo Motor
Voltage220V - 240V
The Jack JK-T1900G (often referred to as the JK 1900G) is a high-speed, computerized electronic bartacking and button-attaching sewing machine. It is widely used in the garment industry for reinforcing seams and attaching buttons on a variety of fabrics
2-in-1 Versatility: The JK-1900G can easily be converted from a bartacking machine to a button sewer using a simple conversion kit
Touch Screen Control: Features an intuitive LCD touch panel that allows you to select patterns, adjust speeds, and modify parameters easily
Short Thread Remaining: Designed to leave a very short thread tail after trimming, reducing the need for manual trimming and increasing productivity
Common Sub-Models
JK-T1900GS: Standard model for light to medium-weight fabrics.
JK-T1900GH: Heavy-duty version designed for thicker materials like denim or heavy workwear.
JK-T1903GR: Specialized version with an automatic button feeder (robot) to increase efficiency.
JK-T1903GR High-speed Electronic Button Attaching Machine With Automatic Button Feeder
Product Brochure
| Button Type | Flat button |
| Operation Type | Computerized |
| Stitch Style | Parallel, Wrap round, Shank wrap, Cross |
| Button Size | 8-30 ligne |
| Max Speed | 2700 spm |
| Fabric Type | Denim, Coats, Shirting, Knitwear |
| Feeding Type | Auto index |
| Clamp Type | Flat clamp |
| Thread Trimming | Automatic |
Button Diameter9 mm – 22 mm (Standard) / Up to 30 mm (Adjustable)
Sewing Area30 mm (L) x 40 mm (W)
Stitch LengthX: 2.4–6.8 mm / Y: 2.4–6.8 mm
Presser Foot Lift13 mm
WeightApprox. 131 kg (Net) / 177 kg (Gross)
The Jack JK-T1903GR is a high-speed, computerized electronic button-attaching machine designed for industrial use. Its standout feature is the integrated automatic button feeder (robot)
Automatic Button Feeder: The "GR" designation indicates the robotic feeder. This system can increase efficiency by up to 180% because the operator doesn't have to place each button by hand.
Dry Head Technology: Advanced lubrication ensures that the needle bar and thread take-up stay oil-free, preventing stains on the fabric
Versatility: While specialized for buttons, the machine can be converted into a bartacking machine (like the JK-T1900G series) with a change kit, allowing for dual-purpose use in a factory setting.
Touch Screen Panel: Features a user-friendly LCD interface where you can easily select from 50+ pre-programmed button patterns or edit your own data
Jack 9270/9280 Feed of the arm
Product Brochure
| Machine Series | 9270D |
| Machine Type | Feed-off-the-arm Chainstitch |
| Application | Medium fabric, Light fabric, Heavy fabric, Denim |
| Max Speed | 4000spm |
| Motor Type | Direct drive |
| Stitch Type | Coverstitch |
| Auto Functions | Needle position, Auto trimmer |
| Panel Type | LCD |
| Table Set | With table |
Needle SystemTVx64 (usually #12 to #14 for light/medium)
Number of Needles2 or 3 (depending on subclass)
Stitch LengthAdjustable (typically 1.4mm to 4.2mm)
Presser Foot Lift8mm to 10mm
LubricationSemi-automatic / Oil-lubricated rear puller
The Jack JK-9270 (also known as the JK-T9270) is a high-speed, industrial "feed-off-the-arm" chainstitch machine.
The 9270 series is highly versatile, typically available in 2-needle or 3-needle configurations depending on the specific sub-model
U-Shaped Platform (Cylindrical Arm): The cantilever design allows you to easily slide sleeves or pant legs over the arm for smooth, continuous stitching of circular seams
Push-Button Stitch Adjustment: You can quickly change the stitch length by pressing a button on the machine body and turning the handwheel, which saves time during production
Pro Tip: If you are working primarily with heavy denim, ensure you are looking at the 9270D (Direct Drive) or the 9280 series, as they provide more torque for piercing thick layers.
Jack 20U93Z Zig-Zag Machine
Product Brochure
| Zigzag Width | 9 mm |
| Application | Shoe uppers, Lingerie, Tailoring, Saree picot, Embroidery |
| Stitch Patterns | Multi zigzag, Basic zigzag |
| Needle Type | Three needle |
| Operation Type | Computerized |
| Max Speed | 2000 spm |
| Free Arm | Yes |
| Bed Type | Flat bed |
| Buttonhole Type | Manual |
Zig-Zag Width Up to 9 mm (adjustable)
Stitch Length Up to 5 mm
Needle System 134R or DPx5
Presser Foot Lift 6 mm (manual)/10 mm(knee)
Lubrication Automatic
Voltage 20V - 240V
The Jack JK-20U-93Z is a high-speed, direct-drive industrial zig-zag sewing machine. It is a modernized version of the classic 20U design, built for both standard sewing and freehand embroidery on light to medium-heavy fabrics
Direct Drive Motor: Features an integrated 550W silent motor that saves energy and allows for precise speed control.
Needle Positioning: The needle can be shifted to 3 positions (left, center, and right), which is helpful for sewing zippers and edges
Precision Control: Includes an electronic "Add Stitch" button near the needle bar for finishing difficult corners or adding a single stitch
Common Applications
Garments: Jackets, underwear, gloves, and elastic reinforcements.
Embroidery: Decorative stitching and freehand Irish embroidery.
Accessories: Bags, leather pieces, and hats.